Nothing Special   »   [go: up one dir, main page]

CN202679543U - Remote intercommunication connection device and remote intercommunication system - Google Patents

Remote intercommunication connection device and remote intercommunication system Download PDF

Info

Publication number
CN202679543U
CN202679543U CN 201220260030 CN201220260030U CN202679543U CN 202679543 U CN202679543 U CN 202679543U CN 201220260030 CN201220260030 CN 201220260030 CN 201220260030 U CN201220260030 U CN 201220260030U CN 202679543 U CN202679543 U CN 202679543U
Authority
CN
China
Prior art keywords
intercom
module
connection device
long
monitoring client
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220260030
Other languages
Chinese (zh)
Inventor
桂天江
董翰韬
侯海冰
孙青永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INFORMATION TECHNOLOGY Co Ltd SHANGHAI AVCON
Original Assignee
INFORMATION TECHNOLOGY Co Ltd SHANGHAI AVCON
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INFORMATION TECHNOLOGY Co Ltd SHANGHAI AVCON filed Critical INFORMATION TECHNOLOGY Co Ltd SHANGHAI AVCON
Priority to CN 201220260030 priority Critical patent/CN202679543U/en
Application granted granted Critical
Publication of CN202679543U publication Critical patent/CN202679543U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Telephonic Communication Services (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

The utility model provides a remote intercommunication connection device and a remote intercommunication system. The remote intercommunication connection device comprises a second interphone for carrying out broadcasting communication with multiple first interphones, an audio frequency acquisition module for collecting the voice information in a second interphone, a data transmit-receive module for carrying out remote communication with a remote monitoring client, a coding and decoding module for coding the voice information received from the audio frequency acquisition module and decoding the voice information received from the data transmit-receive module, and an interphone control module which controls the second interphone to open the intercommunication broadcasting function and transmits the decoded voice information in the coding and decoding module to the second interphone to make the second interphone broadcast the voice information to multiple first interphones. The remote interphone system comprises a remote monitoring client, multiple first interphones, and a remote intercommunication connection device mentioned above. The remote intercommunication connection device of the utility model connects multiple interphones with a remote monitoring client, thereby solving the problem that the conventional intercommunication device is unable to realize remote communication.

Description

A kind of long-range intercommunication connection device and long-range intercom system
Technical field
The utility model relates to the talk back equipment technical field, particularly relates to a kind of long-range intercommunication connection device and long-range intercom system.
Background technology
Wireless interspeaker is the mobile radio communication device that is used by the mankind the earliest, just begin to be applied as far back as nineteen thirties, through the development in 3/4th century, the application of intercom is very general, move towards ordinary consumption from specialized field, from military expand to civilian.Wireless interspeaker is an important branch in the mobile communication, and it is a kind of wireless terminal equipment that some multiple spot is communicated that can use in movement, and many people are exchanged simultaneously each other, makes many people can hear simultaneously the same person speech.Because wireless interspeaker immediately links up, gets ready to go into action in hundreds, easy to use, in processing urgent accident, its effect is that other meanss of communication are irreplaceable in carrying out dispatch control.
Because the above-mentioned characteristic of intercom is widely used in public security scheduling, railway dispatching, taxi dispatching, Automobile Transportation scheduling, aviation scheduling etc. at present.Yet, the communication distance of intercom but is subject to certain limitation, the signal transmission distance of intercom and its power have direct relation, in order to ensure the transmission range of signal, the power of intercom is usually larger, and general hand-hold wireless intercom power is at 4-6w, it is larger that car (ship, machine) carries formula wireless interspeaker volume, power is not less than 10W, is generally 25W, and maximum power is that VHF is that 56W, UHF are 50W; Also have indivedual vehicle-mounted intercommunication terminals to reach 75W (IC-VX8000) at the power of a certain frequency range, easily other people are caused interference, equally also be subjected to easily the interference of other intercoms, and this high-power to bring human body radiation very big.By contrast, the power of mobile phone is then much smaller, and the power of intercom is generally tens times even hundred times of mobile phone, and its radiation is also much bigger for mobile phone.
Take the most frequently used hand-hold wireless intercom as example, communication distance generally can reach 5 kilometers when clog-free opening.Under the support of cordless communication network, can reach 10 ~ 20 kilometers by the intermediate station communication distance, if distance is long again, then can't guarantee communication.
Traditional talk back equipment is except carrying out audio transmission among a small circle in this locality in addition, do not realize that acoustic arrives thousands of miles away, traditional talk back equipment can not make a plurality of personnel that carry respectively intercom carry out intercommunication with the personnel of remote monitoring client simultaneously, so that inconvenient long-range all members or a plurality of personnel that transfer simultaneously or coordinate a team of the personnel of remote monitoring client.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of long-range intercommunication connection device and long-range intercom system, is used for solving the problem that a plurality of talk back equipments of prior art can't communicate with the remote monitoring client.
Reach for achieving the above object other relevant purposes, the utility model provides a kind of long-range intercommunication connection device, be connected between remote monitoring client and a plurality of the first intercom, described long-range intercommunication connection device comprises: the second intercom that carries out broadcast communication with a plurality of the first intercoms; Link to each other with described the second intercom and gather the audio collection module of the voice messaging that described the second intercom receives from described the first intercom; Carry out the data transmit-receive module of telecommunication network voice traffic transmission with described remote monitoring client; Be connected between described audio collection module and the described data transmit-receive module coding/decoding module that the voice messaging that receives from described audio collection module is encoded, the voice messaging that receives from described data transmit-receive module is decoded; Link to each other with described coding/decoding module, control described the second intercom open the intercommunication broadcast capability and with the transmission of speech information of decoding in the described coding/decoding module in the second intercom so that described the second intercom is broadcast to this voice messaging the intercom control module of a plurality of the first intercoms.
Alternatively, described data transmit-receive module comprises GPRS communication unit, 3G communication unit and/or TD-LTE communication unit.
Alternatively, described data transmit-receive module also comprises wired communication unit.
Alternatively, also comprise with described data transmit-receive module linking to each other, be used for gathering the camera that local image is analyzed for the remote monitoring client.
Alternatively, described intercom control module is by the intercommunication broadcast capability of described second intercom of intercommunication switch open of described the second intercom of control.
In addition, the utility model also provides a kind of long-range intercom system, comprise remote monitoring client, a plurality of the first intercom and be connected to the remote monitoring client and a plurality of the first intercom between aforesaid long-range intercommunication connection device.
As mentioned above, a kind of long-range intercommunication connection device of the present utility model and long-range intercom system have following beneficial effect:
The utility model couples together a plurality of intercoms and remote monitoring client, make a plurality of talk back equipments both can be to the remote monitoring client sending voice information of setting out, also can accept simultaneously the voice command that the remote monitoring client sends over, both solve existing talk back equipment and can't realize the problem of telecommunication, reached also that the personnel of monitor client are long-range to be transferred simultaneously and coordinate all members of a team or a plurality of personnel's purpose, be applicable to Long-distance Control team collaboration.
Description of drawings
Fig. 1 is shown as the structural representation of a kind of long-range intercom system of the present utility model.
The element numbers explanation
1 long-range intercommunication connection device
10 second intercoms
11 audio collection modules
12 coding/decoding modules
13 data transmit-receive modules
14 intercom control modules
2 first intercoms
3 remote monitoring clients
Embodiment
Below by particular specific embodiment execution mode of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Notice, the appended graphic structure that illustrates of the specification of a kind of long-range intercommunication connection device of the present utility model, ratio, size etc., equal contents in order to cooperate specification to disclose only, understand and reading for person skilled in the art scholar, be not to limit the enforceable qualifications of the utility model, so technical essential meaning of tool not, the modification of any structure, the adjustment of the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.
The utility model provides a kind of long-range intercommunication connection device and long-range intercom system, a plurality of intercoms and remote monitoring client are coupled together, make a plurality of talk back equipments both can be simultaneously to the remote monitoring client sending voice information of setting out, also can accept simultaneously the voice command that the remote monitoring client sends over.Below will elaborate principle and the execution mode of a kind of long-range intercommunication connection device of the present utility model and long-range intercom system, and make those skilled in the art not need creative work can understand a kind of long-range intercommunication connection device of the present utility model and long-range intercom system.
As shown in Figure 1, the utility model provides a kind of long-range intercom system, comprising: remote monitoring client 3, a plurality of the first intercom 2 and be connected to remote monitoring client 3 and a plurality of the first intercom 2 between long-range intercommunication connection device 1.
Can not carry out remote speech communication between remote monitoring client 3 and a plurality of the first intercom 2 at present, the monitor staff of remote monitoring client 3 can not a plurality of personnel that carry respectively the first intercom 2 of long-range unified command unify activity or coordinative operation.
Given this, the utility model is by arranging long-range intercommunication connection device 1 to set up the remote speech communication connection between remote monitoring client 3 and a plurality of the first intercom 2 between remote monitoring client 3 and a plurality of the first intercom 2.Described long-range intercommunication connection device 1 is arranged near a plurality of the first intercoms 2, and is connected with long-range remote monitoring client 3 by network.By long-range intercommunication connection device 1, a plurality of the first intercoms 2 can to the remote monitoring client 3 sending voice information of setting out, also can be accepted the voice command that remote monitoring client 3 sends over simultaneously.Therefore, long-range intercommunication connection device 1 can solve the problem of remote monitoring client 3 and a plurality of the first intercom 2 telecommunications, the personnel that make remote monitoring client 3 are long-range to be transferred simultaneously and coordinates all members of a team or a plurality of personnel's purpose so long-range intercom system of the present utility model has reached, and is applicable to Long-distance Control team collaboration.
For realizing the function of above-mentioned long-range intercommunication connection device 1, particularly, described long-range intercommunication connection device 1 includes but not limited to: the second intercom 10, audio collection module 11, data transmit-receive module 13, coding/decoding module 12 and intercom control module 14.
As everyone knows, intercom is a kind of bidirectional mobile communication instrument, in the situation of network support, just can converse, and does not have telephone expenses to produce, and is applicable to the occasion of relatively fixing and frequently conversing.A plurality of the first intercoms 2 and the second intercom 10 can be conventional intercom in the utility model, also can be intercom of video intercom and the specific (special) requirements of public's intercom etc.Distance between a plurality of the first intercoms 2 and the second intercom 10 is the distance between the conventional intercom, the ultimate range scope is 3 ~ 5 kilometers, there is being high-lager building etc. to disturb obvious environment, should adjust suitable distance between a plurality of the first intercoms 2 and the second intercom 10, to guarantee the communication efficiency between a plurality of the first intercoms 2 and the second intercom 10.
Described the second intercom 10 is used for communicating with a plurality of the first intercoms 2.Need to prove that a plurality of described the first intercoms 2 also can communicate each other, namely as long as any one is broadcasted among described the second intercom 10 and a plurality of the first intercom 2, other intercom can receive the broadcasted content of this intercom.The effect of described the second intercom 10 is the content that will receive from any the first intercom 2 finally is transferred to remote monitoring client 3 by other parts of described long-range intercommunication connection device 1 personnel, make so a plurality of the first intercoms 2 send voice messaging to remote monitoring client 3, solved the problem that existing talk back equipment can't be realized telecommunication.
Described audio collection module 11 links to each other with described the second intercom 10 and gathers the voice messaging that described the second intercom 10 receives from the first intercom 2.Particularly, described audio collection module 11 links to each other with the audio output of the second intercom 10, and after described the second intercom 10 received the voice messaging of described the first intercom 2 broadcasting, described audio collection module 11 had just been obtained this voice messaging like this.
After described audio collection module 11 has been obtained this voice messaging, for satisfying the requirement of transfer of data, usually need to change this voice messaging, so connect a coding/decoding module 12 that is used for voice messaging is carried out code conversion in described audio collection module 11.Particularly, described coding/decoding module 12 is connected between described audio collection module 11 and the described data transmit-receive module 13, and described coding/decoding module 12 includes a coding unit.After described coding unit is encoded to the voice messaging that receives from described audio collection module 11, transmission of speech information after the coding to data transmit-receive module 13, will be encoded transmission of speech information afterwards to remote monitoring client 3 for described data transmit-receive module 13.
In addition, described coding/decoding module 12 also comprises a decoding unit, be used for that described data transmit-receive module 13 is received the voice messaging of coming from remote monitoring client 3 and decode, the voice messaging after will decoding for described the second intercom 10 is broadcast to a plurality of the first intercoms 2.
Described coding/decoding module 12 also links to each other with described intercom control module 14, described intercom control module 14 be used for controlling described the second intercom 10 open the intercommunication broadcast capabilitys and with the transmission of speech information of described coding/decoding module 12 decodings in the second intercom 10 so that described the second intercom 10 is broadcast to a plurality of the first intercoms 2 with this voice messaging.In the present embodiment, described intercom control module 14 is by the intercommunication broadcast capability of described second intercom 10 of intercommunication switch open of described the second intercom 10 of control.
Particularly, one end of described intercom control module 14 links to each other with described coding/decoding module 12, the other end links to each other with the intercommunication switch interface of described the second intercom 10, when described intercom control module 14 receives voice messaging, control the intercommunication switch open of the second intercom 10 to open the intercommunication broadcast capability of described the second intercom 10, like this, just, the voice command with the monitor staff of remote monitoring client 3 is broadcast to a plurality of the first intercoms 2.Just can accept simultaneously the voice command that remote monitoring client 3 sends over because carry respectively the personnel of the first intercom 2, the personnel that make remote monitoring client 3 are long-range to be transferred simultaneously and coordinates all members of a team or a plurality of personnel's purpose so the utility model has reached, so the utility model is applicable to Long-distance Control team collaboration.
Described data transmit-receive module 13 is used for carrying out the remote network communication transmission with remote monitoring client 3.
Because described long-range intercommunication connection device 1 and a plurality of the first intercom 2 distance range monitoring clients 3 may be far, so need to be connected by network between described data transmit-receive module 13 and the described remote monitoring client 3, can adopt cable network and wireless network.So in the present embodiment, described data transmit-receive module 13 had both comprised one or more combinations of GPRS communication unit, 3G communication unit and TD-LTE communication unit for radio communication, also comprised the wire communication unit for wire communication.In the remoter situation of the distance between described long-range intercommunication connection device 1 and a plurality of the first intercom 2 and the remote monitoring client 3, consider the somewhat expensive that adopts the wire communication mode to need laying-out, so preferably, adopt the communication mode of wireless network between described data transmit-receive module 13 and the described remote monitoring client 3.
Need to prove, for the monitor staff who makes remote monitoring client 3 can see described long-range intercommunication connection device 1 situation on every side, in order to carry out remote command, described long-range intercommunication connection device 1 also comprises with described data transmit-receive module 13 and linking to each other, and is used for gathering the camera that local image is analyzed for remote monitoring client 3.
For making those skilled in the art further understand principle of the present utility model and execution mode, below will describe use procedure of the present utility model in detail as an example of the far team of monitor staff's orchestration distance of remote monitoring client example.
First intercom 2 of each staffing in the team, and the long-range intercommunication connection device 1 in the utility model is arranged on any the first intercom 2 can communicates in the scope place of broadcasting with the second intercom 10.Send voice messaging use procedure of the present utility model as example illustrates to the monitor staff of remote monitoring client 3 first take the personnel of team.
The personnel that carry arbitrarily the first intercom 2 can be facing to 2 speeches of the first intercom, because other staff are apart from personnel's close together of speech in the team, so other staff can hear his speech from the first intercom 2 that carries, the second intercom 10 also receives the voice content of this speech simultaneously, described audio collection module 11 from shown in collect this voice content the second intercom 10 after, this voice content is transferred to coding unit in the described coding/decoding module 12, after described coding unit is encoded to this voice content, send in the data transmit-receive module 13, described data transmit-receive module 13 by Internet Transmission in remote monitoring client 3, the monitor staff of like this, remote monitoring client 3 has just heard the voice content facing to the first intercom 2 speech personnel.
If a plurality of personnel of team are simultaneously facing to the first intercom 2 speeches of oneself carrying, because the second intercom 10 can be received the speech voice of a plurality of the first intercoms 2 simultaneously, so the monitor staff of remote monitoring client 3 also just can hear a plurality of personnel's of team speech voice simultaneously.
If the monitor staff of remote monitoring client 3 sends voice command to the Team Member of carrying the first intercom 2, each Team Member is movable with coordinative command, so at this moment, this voice command can be by Internet Transmission in data transmit-receive module 13, then data transmit-receive module 13 is transferred to this voice command in the coding/decoding module 12, after decoding unit in coding/decoding module 12 is decoded to this voice command, voice command after the decoding is transferred in the intercom control module 14, described intercom control module 14 is after receiving this voice command, control the intercommunication switch open of described the second intercom 10, and this voice command is transferred in described the second intercom 10 so that described the second intercom 10 is broadcast to a plurality of the first intercoms 2 with this voice command.Like this, Team Member has just received the voice command that the monitor staff of remote monitoring client 3 sends, and reaches the purpose of remote command team.
Described intercom control module 14 is controlled the intercommunication switch of described the second intercom 10 and is closed when not receiving new voice command, so that described the second intercom 10 receiving speech information from the first intercom 2.
In sum, a kind of long-range intercommunication connection device of the present utility model and long-range intercom system have following beneficial effect:
The utility model couples together a plurality of intercoms and remote monitoring client, make a plurality of talk back equipments both can be simultaneously to the remote monitoring client sending voice information of setting out, also can accept simultaneously the voice command that the remote monitoring client sends over, both solve existing talk back equipment and can't realize the problem of telecommunication, reached also that the personnel of monitor client are long-range to be transferred simultaneously and coordinate all members of a team or a plurality of personnel's purpose, be applicable to Long-distance Control team collaboration.So the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.

Claims (6)

1. a long-range intercommunication connection device is connected between remote monitoring client and a plurality of the first intercom, it is characterized in that, described long-range intercommunication connection device comprises:
The second intercom that carries out broadcast communication with a plurality of the first intercoms;
Link to each other with described the second intercom and gather the audio collection module of the voice messaging that described the second intercom receives from described the first intercom;
Carry out the data transmit-receive module of telecommunication network voice traffic transmission with described remote monitoring client;
Be connected between described audio collection module and the described data transmit-receive module coding/decoding module that the voice messaging that receives from described audio collection module is encoded, the voice messaging that receives from described data transmit-receive module is decoded;
Link to each other with described coding/decoding module, control described the second intercom open the intercommunication broadcast capability and with the transmission of speech information of decoding in the described coding/decoding module in the second intercom so that described the second intercom is broadcast to this voice messaging the intercom control module of a plurality of the first intercoms.
2. long-range intercommunication connection device according to claim 1, it is characterized in that: described data transmit-receive module comprises GPRS communication unit, 3G communication unit and/or TD-LTE communication unit.
3. long-range intercommunication connection device according to claim 1 and 2, it is characterized in that: described data transmit-receive module also comprises wired communication unit.
4. long-range intercommunication connection device according to claim 1 is characterized in that: described intercom control module is by the intercommunication broadcast capability of described second intercom of intercommunication switch open of described the second intercom of control.
5. long-range intercommunication connection device according to claim 1 is characterized in that: also comprise with described data transmit-receive module linking to each other, be used for gathering the camera that local image is analyzed for the remote monitoring client.
6. long-range intercom system is characterized in that: comprise remote monitoring client, a plurality of the first intercom and be connected to the remote monitoring client and a plurality of the first intercom between such as the described long-range intercommunication connection device of claim 1 to 5 any one.
CN 201220260030 2012-06-04 2012-06-04 Remote intercommunication connection device and remote intercommunication system Expired - Lifetime CN202679543U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220260030 CN202679543U (en) 2012-06-04 2012-06-04 Remote intercommunication connection device and remote intercommunication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220260030 CN202679543U (en) 2012-06-04 2012-06-04 Remote intercommunication connection device and remote intercommunication system

Publications (1)

Publication Number Publication Date
CN202679543U true CN202679543U (en) 2013-01-16

Family

ID=47500412

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220260030 Expired - Lifetime CN202679543U (en) 2012-06-04 2012-06-04 Remote intercommunication connection device and remote intercommunication system

Country Status (1)

Country Link
CN (1) CN202679543U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103475954A (en) * 2013-09-04 2013-12-25 中国铁道科学研究院电子计算技术研究所 Long-distance intercom system and method in railway administration and control station
CN104113461A (en) * 2014-07-08 2014-10-22 中国石油集团东方地球物理勘探有限责任公司 Long-distance voice communication system and method used for seismic prospecting
CN104787637A (en) * 2015-04-14 2015-07-22 广州市传洲电子科技有限公司 Hybrid wireless elevator emergency help calling system
CN105116776A (en) * 2015-08-21 2015-12-02 重庆多创电子技术有限公司 Decoding card
CN112954038A (en) * 2021-02-04 2021-06-11 四川安杰信科技股份有限公司 Fusion communication system for well site data acquisition unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103475954A (en) * 2013-09-04 2013-12-25 中国铁道科学研究院电子计算技术研究所 Long-distance intercom system and method in railway administration and control station
CN104113461A (en) * 2014-07-08 2014-10-22 中国石油集团东方地球物理勘探有限责任公司 Long-distance voice communication system and method used for seismic prospecting
CN104113461B (en) * 2014-07-08 2018-04-13 中国石油集团东方地球物理勘探有限责任公司 A kind of remote speech communication system and method for seismic prospecting
CN104787637A (en) * 2015-04-14 2015-07-22 广州市传洲电子科技有限公司 Hybrid wireless elevator emergency help calling system
CN105116776A (en) * 2015-08-21 2015-12-02 重庆多创电子技术有限公司 Decoding card
CN112954038A (en) * 2021-02-04 2021-06-11 四川安杰信科技股份有限公司 Fusion communication system for well site data acquisition unit

Similar Documents

Publication Publication Date Title
CN202679543U (en) Remote intercommunication connection device and remote intercommunication system
CN109413564A (en) A kind of talkback system and its application method
CN206379967U (en) A kind of intelligent hand-held terminal for supporting communication
CN207573346U (en) A kind of the whole network leads to the intercom with DA compatibility one
CN102885685A (en) Monitoring and blind-guide method implemented through communication equipment
CN102572614A (en) Walkie-talkie remote communication method and walkie-talkie
CN202004917U (en) Telecommunication interphone
CN109462782B (en) Communication system for converting fax into talkback
CN202364319U (en) Multi-mode communication support command system for electric power emergency
CN101524271A (en) Electrocardio cellphone monitoring method without base station or satellite signal
CN207665224U (en) A kind of talkback system
CN202856740U (en) Multi-mode on-site emergency communication system
CN103138835A (en) Multi-mode spot emergency communication system
CN203072176U (en) Multifunctional IOT wireless intelligent terminal system
CN207283533U (en) A kind of fusion command system based on power emergency trunking communicating technology
CN2938654Y (en) Station radio communicating device
CN110166339A (en) Airborne Communication Control host, aircraft real-time communication and monitoring system
CN205610942U (en) Intelligent system based on digital walkie -Talkie realizes wide area business of talkbacking
CN208029102U (en) A kind of multimedia dispatching commander's base station apparatus based on LTE network
CN208691294U (en) Ship internal communication intelligent interactive system
CN208806803U (en) A kind of satellite phone access system
CN205691127U (en) A kind of bluetooth GPS Ridio communications device and system thereof
CN216162878U (en) Backpack wireless communication terminal based on LTE network
CN206506598U (en) A kind of individual soldier's broadband wireless access terminal
CN212572537U (en) Ultrashort wave cluster communication scheduling system of communication command car

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20130116

CX01 Expiry of patent term